httpCacheDir := filepath.Join(cacheDir, "http")
			discoveryCacheDir := computeDiscoverCacheDir(filepath.Join(cacheDir, "discovery"), restConfig.Host)

			return diskcached.NewCachedDiscoveryClientForConfig(restConfig, discoveryCacheDir, httpCacheDir, 6*time.Hour)
		}
		d, err := discovery.NewDiscoveryClientForConfig(restConfig)
		if err != nil {
			return nil, err
		}
		return memory.NewMemCacheClient(d), nil

		cacheDir = *f.CacheDir
	}

	httpCacheDir := filepath.Join(cacheDir, "http")
	discoveryCacheDir := computeDiscoverCacheDir(filepath.Join(cacheDir, "discovery"), config.Host)

	return diskcached.NewCachedDiscoveryClientForConfig(config, discoveryCacheDir, httpCacheDir, time.Duration(6*time.Hour))
}

// getDefaultCacheDir returns default caching directory path.
// it first looks at KUBECACHEDIR env var if it is set, otherwise